body {
    font-family: Arial, sans-serif;
    background-image: url('background.jpg');
    background-size: cover;
    background-position: center;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 600px;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.8);
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #333;
    margin-bottom: 20px;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    background: rgba(10, 211, 37, 0.8);
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

li:hover {
    background: rgba(224, 224, 224, 0.8);
}

audio {
    margin-top: 20px;
    width: 100%;
    background-color: rgba(167, 40, 128, 0.8);
    border-radius: 10px;
    padding: 10px;
    outline: none;
}